DEVELOPMENT OF A MANUALLY OPERATED RICE TRANSPLANTER
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Date
2019
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Birsa Agricultural University, Ranchi, Jharkhand-6
Abstract
cultivation. However manual rice transplanting is labour-intensive, time consuming,
tiresome and results in non-uniform distribution of seedlings. Mechanical transplanting is an
alternative to manual transplanting, in terms of timeliness of operation, reduction of drudgery
and low cost of operation. Fragmentation of land into smaller plots further limits free
movement of the machines. However, farmers of the state uses root wash type seedlings for
transplanting. Therefore, there is a need to develop a rice transplanter suitable for small land
holding with low cost. In order to develop manually operated rice transplanter the four bar
linkage of the commercially available root washed type hand crank transplanter was analyzed
and incorporated in the transplanting mechanism. The developed manual paddy transplanter
consists of seedling picking mechanism, transplanting mechanism, power transmission system,
seedling tray with frame, handle and float.
The developed transplanter was evaluated at laboratory as well as at field condition. The
effective field capacity of the transplanter was 0.026 ha/h at an operating speeds of 0.82 km/h.
The average height of the seedlings was 197.82 mm, 235.78 mm, 280.50 mm, and 340.60 mm
for 20, 25, 30, 35 and 40 days old seedlings, respectively. Average hill-to-hill spacing, average
number of seedlings per hill and average depth of planting were 195.09 mm, 4.12 and 56.88
mm, respectively. Average missing hills, floating hills and visible damage of the transplanter
were 11 %, 9 %, 11% and 10 %, respectively. Cost of transplanting by the transplanter was Rs
4,007/ha whereas by manual transplanting it was Rs 12,540/ha, thus there is a saving of Rs
8,533/ha. The performance of the machine was found satisfactory.
Description
DEVELOPMENT OF A MANUALLY OPERATED RICE TRANSPLANTER
Keywords
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